AU604024B2 - Two-piece downhole drill chuck - Google Patents

Two-piece downhole drill chuck Download PDF

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Publication number
AU604024B2
AU604024B2 AU74422/87A AU7442287A AU604024B2 AU 604024 B2 AU604024 B2 AU 604024B2 AU 74422/87 A AU74422/87 A AU 74422/87A AU 7442287 A AU7442287 A AU 7442287A AU 604024 B2 AU604024 B2 AU 604024B2
Authority
AU
Australia
Prior art keywords
drill
chuck
casing
drill bit
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU74422/87A
Other versions
AU7442287A (en
Inventor
Robert Wesley Hughes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of AU7442287A publication Critical patent/AU7442287A/en
Application granted granted Critical
Publication of AU604024B2 publication Critical patent/AU604024B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1085—Wear protectors; Blast joints; Hard facing
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • E21B17/076—Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes

Description

AUSTRALIA
6002 Patents Act COMPLETE SPECIFICATION (Or.IGINAL) Class Int. Class Application Number-, Lodged: Complete Specificatiorx Lodgcd& Accepted: Published: Priority Related Art: Name(s) of Applicant(s): Address(es) of Applicant(s): Actual Inventor(s): APPLICANT'S REF.: INCEROLL-RANP COMPANY 200 CHESTNUT RIDGE ROAD WOODCLIFF LAKE NEW JERSEY 07675-8738 UNITED STATES OF AMERICA 0030O-IR-RD LThisq docunyient contains the armendmoIlts made undor Section 49 and',$ correct for printing ROBERT W. Inr=lIES t i,
I
Address for Service is. PHILLIPS, ORMONDE AND FiTZPATRICK Patent and Trade Mark~ Attorneys 367 Collins Street Melbourne, Australia, 3000 Complete Specification for the Invention entitled-, TWO PIECE DOW441OLE DRILL CUCK The following statement is -a full description of this, invention, including the best method of performing, it known to~ applicant(s):- 1,191/94 Docket No.: 0030--IR-RD Downhill drills suffer considerable exposure to erosive conditions in that air or other fluid entrained rock solids are passed along the outside of the drill on their way out of the drill hole. Erosive damage to the drill is a common cause of drill failure. Drill chucks which hold the working drill bit are particularly vulnerable to such damage in that they are located in close proximity to the transition zone between the drill face, where the rock is clvt, and the walls of the drilled hole where air flow isi most erratic.
The chucks for downhole drills have historically been of one piece design. The material selection has been a compromise between the mechanical requirements of the spline/thread area and the erosive resistance requirement of the collar.
The object of this invention is to provide a two piece downhole drill chuck which will: 1. Permit material selection for optimum properties for the highly machined close tolerances threads, splines, bearing bore, registers, concentricities, etc.) portion of the chuck. In most cases this portion of the chuck is still serviceable when the chuck is discarded because of excessive erosive wear in the collar portion. Thus, this position of the chuck can support a series of wearable y replaceable collar portions.
0706L 2.
ii Docket No.: 0030-IR-RD 2. Provide a low cost replaceable collar portion that requires minimal machining. The material and heat treatment can be selected to provide economic optimum properties to resist the severe erosive abrasion to which the chuck collar is subjected.
Thus, the prime objective is to provide an economic chuck in which a single relatively expensive, highly machined chuck portion can support a succession of low cost chuck collars that are subject to high rates of wear.
These and other objects are obtained in a downhole drill chuck comprising: a mounting chuck means for
OO
securing a drill bit to a downhole drill; and a ch k S" wear collar concentric about an outside portion f the o 15 mounting chuck means and mounted thereon for potection o, thereof.
Poo DESCRIPTION OF THE DRAWIN S 4a 4 4l Figure 1 shows a half ngitudinal section of a ,.sr conventional downhole dri chuck.
Figure 2 shows longitudinal section of a S. 20 downhole dcill ch k according to the present invention.
Figure is a cross section of the downhole drill according o the present invention taken at section 3-3 of Figu 2.
R S_ 0706L i- I These and other objects are obtained in a two piece drill chuck for a downhole drill including a cylindrical casing supported on a drill string for driving support therefrom, and a drill bit partly surrounded by, and extending downwardly from t~ae casing, the drill bit being of the type wherein drilling fluid is supplied through a central bore in the drill bit and exits the drill bit and drill hole about the peripheral outside surface of the drill bit and the casing, wherein a chuck mounting means of hollow cylindrical form is provided for securing the drill bit to the downhole drill, the chuck mounting means being interspaced between the casing and the drill bit and being in driving engagement with tha casing and the drill bit, the chuck mounting means having a lower portion extending downwardly beyond the lower end of the casing, and a chuck wear collar of hollow cylindrical form concentric about and covering the entire lower portion of I the chuck mounting means, the chuck wear collar having an upwardly facing surface in engagement with the casing and 20 a downwardly facing surface in engagement with the drill bit.
The following description refers in more detail to the various features of 'he two piece drill chuck of the present invention. To facilitate an understanding of the invention, reference is made in the description to the accompanying drawings where the drill chuck is illustrated in preferred embodinients. It is to be understood that the drill chuck of the present invention is not limited to the preferred embodiments as illustrated in the drawings.
Figure 1 shows a half longitudinal section of a conventional downhole drill chuck.
Figure 2 shows a longitudinal section of a downhole drill chuck according to the present invention.
Figure 3 is a cross section of the downhole drill according to the present invention taken at section 3-3 of 4 Figure 2.
-LSa 9r 0Q 9 -3a- Docket No.: 0030-IR-RD Figure 4 shows a half longitudinal section of an alternative embodiment of the drill chuck according to the present invention.
Figure 1 shows a downhole drill according to the prior art. The drill chuck is shown in the conventional one piece construction. As one skilled in the art must appreciate, this is a highly machined part having threads and splines with both internal and external tolerances. Materials must be chosen for a 10 ccmpromise of wear, toughness and machinability.
6 o 9 Figure 2 shows a two piece drill chuck according to the present invention. The chuck portion (lA) on a oo downhole drill serves to transfer the rotational torque o (from a source not shown) of the casing thru the threads and the splines to the downhole bit The split bit retaining ring (19) retains the bit o in the downhole drill during the retract operation.
0 The splines permit the axial percussive motion of the bit initiated by the successive percussive <o 20 impact of the piston (not shown) on the struck face (6) to be transmitted to the tungsten carbide inserts (7) in contact with the rock and thus accomplish the desired drilling. The chuck collar portion is assembled on chuck portion (la) prior to engaging thread and is clamped between the shoulder (10) of chuck and the face (11) of wear sleeve Face (12) of chuck portion is recessed so that face (13) of chuck collar is in contact with the back face of bit head (14) of bit Thus, the rebound energy of S4S 0706L 4.
Docket No.: 0030-IR-RD (13) of chuck collar than thru face (11) of casing and then thru system support components (not shown). The compressed air used to provide the percussive energy to the piston (not shown) is exhausted thru conduit (15) across the face (16) of the bit head (14) where it picks up rock cuttings and exhausts them thru annulus (17) and then to the surface. The high velocity of the exhaust air/rock cutting mixture (resulting from high air flows associated with high pressure operation) in annulus (17) can cause high rates of erosive abrasive damage on surface (18) of chuck collar and thus result in early discard.
Figure 3 shows the cross section of the drill ao o, 15 chuck according to the present invention.
Thus, the two piece chuck permits the replacement of a succession of low cost high wear rate chuck collar S. while retaining a single relatively expensive highly machined low wear rate chuck portion (la).
20 Figure 4 shows an alternative embodiment of the present invention wherein the chuck collar (9A) is modified to extend longitudinally rearward from the drill face to extend over the casing and thereby effect a measure of protection for the end of the casing which is also subject to erosive wear in the prior art. The feature of the chuck skirt extending rearward over the casing is impossible to economically machine in a one piece chuck and thus is a l feature benefit of the two piece design.
In this embodiment, the wear resistant material of the chuck collar performs a dual function in that it permits not only lonqer life of its chuck but also extends the life of the drill casing.
1 0706L Docket No.: 0030-IR-RD
I
Having now described my invention in terms of a preferred embodiment, I do not wish to be limited in the scope of my invention except as claimed: i ft.
Ii
*II
0706L 6.
.6 S, 'L l

Claims (4)

1. A two piece drill chuck for a downhole drill including a cylindrical casing supported on a drill string for driving support therefrom, and a drill bit partly surrounded by, and extending downwardly from the casing, the drill bit being of the type wherein drilling fluid is supplied through a central bore in the drill bit and exits the drill bit and drill hole about the peripheral outside surface of the drill bit and the casing, wherein a chuck mounting means of hollow cylindrical form is provided for securing the drill bit to the downhole drill, the chuck mounting means being interspaced between the casing and the drill bit and being in driving engagement with the casing and the drill bit, the chuck mounting means having a lower portion extending downwardly beyond the lower end of the casing, and a chuck wear collar of hollow cylindrical form concentric about and covering the entire I* lower portion of the chuck mounting means, the chuck wear collar having an upwardly facing surface in engagement 20 with the casing and a downwardly facing surface in engagement with the drill bit.
2. The two piece drill chuck according to claim 1 wherein said mounting chuck means is made of a tough, machinable material and said wear collar is made of erosion resistant material. S0
3. The two piece drill chuck according to claim 1 or 2 wherein said wear collar extends upwardly over the casing of the downhole drill to effect erosion protection of said casing.
4. A two piece drill chuck for a downhole drill substantially as hereinbefore described with respect to B9t any one of the embodimerits as shown in Figures 2 to 4 of the accompanying drawings. DATED: 12 January 1990 PHILLTPS ORMONDE FITZPATRICK Attorneys for: XNGERSOLL-RAND COMPANY S0963X -7- I I Mi
AU74422/87A 1986-08-01 1987-06-17 Two-piece downhole drill chuck Ceased AU604024B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/891,560 US4706764A (en) 1986-08-01 1986-08-01 Two piece down hole drill chuck
US891560 1992-05-29

Publications (2)

Publication Number Publication Date
AU7442287A AU7442287A (en) 1988-02-04
AU604024B2 true AU604024B2 (en) 1990-12-06

Family

ID=25398416

Family Applications (1)

Application Number Title Priority Date Filing Date
AU74422/87A Ceased AU604024B2 (en) 1986-08-01 1987-06-17 Two-piece downhole drill chuck

Country Status (7)

Country Link
US (1) US4706764A (en)
JP (1) JPH0730666B2 (en)
CN (1) CN1011323B (en)
AU (1) AU604024B2 (en)
CA (1) CA1328255C (en)
SE (1) SE8702757L (en)
ZA (1) ZA874027B (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4836306A (en) * 1987-12-14 1989-06-06 Ingersoll-Rand Company Down hole drill chuck lock
US4953640A (en) * 1989-08-21 1990-09-04 Kurt Ewald H Quick detach bit
USRE36002E (en) * 1990-04-26 1998-12-22 Sds Digger Tools Pty, Ltd. Transmission sleeve for a down hole hammer
AU638571B2 (en) * 1990-04-26 1993-07-01 Sandvik Rc Tools Australia Pty Limited Transmission sleeve for a down hole hammer
CA2041000C (en) * 1990-04-26 2005-07-12 John Elsby Transmission sleeve for a down hole hammer
US5085285A (en) * 1990-07-17 1992-02-04 D.T.A. Pty. Ltd. Compensating ring for a down hole hammer
US5090500A (en) * 1990-11-30 1992-02-25 Sandvik Rock Tools, Inc. Replaceable wear sleeve for percussion drill
SE506207C2 (en) * 1992-01-22 1997-11-24 Sandvik Ab Lower Drill
US5803192A (en) * 1996-05-13 1998-09-08 Holte; Ardis L. Drill bit retainer for a down hole hammer assembly
US5735358A (en) * 1996-06-06 1998-04-07 Ingersoll-Rand Company Indexing percussive drilling bit
US5647447A (en) * 1996-06-10 1997-07-15 Ingersoll-Rand Company Bit retention device for a bit and chuck assembly of a down-the-hole percussive drill
US5944117A (en) * 1997-05-07 1999-08-31 Eastern Driller's Manufacturing Co., Inc. Fluid actuated impact tool
SE523946C2 (en) * 2001-12-21 2004-06-08 Atlas Copco Secoroc Ab Lowering drill hammer where the outer tube completely encloses a carrier
WO2005077040A2 (en) * 2004-02-11 2005-08-25 Rensselaer Polytechnic Institute Compositions and methods for treating amyotrophic lateral sclerosis (als)
US7395883B2 (en) * 2005-12-15 2008-07-08 Rockmore International, Inc. Keyed connection for drill bit
US7467675B2 (en) * 2006-06-06 2008-12-23 Atlas Copco Secoroc Llc Device for channeling solids and fluids within a reverse circulation drill
SE0701274L (en) * 2007-05-21 2008-05-13 Svenska Borr Ab Device for drilling in soil layers and rock
US8100200B2 (en) * 2009-04-16 2012-01-24 Atlas Copco Secoroc Llc Chuck assembly for a down-hole drill
US20100263932A1 (en) * 2009-04-16 2010-10-21 Dale Richard Wolfer Bit retainer assembly for a down-hole drill
US8544566B2 (en) 2010-06-15 2013-10-01 Eastern Drillers Manufacturing, Inc. Fluid actuated impact tool with solid piston-standard bit arrangement and water seal
US9453372B2 (en) 2014-02-12 2016-09-27 Eastern Driller Manufacturing Co., Inc. Drill with integrally formed bent sub and sonde housing
CN104594812B (en) * 2014-12-31 2017-08-15 深圳市工勘岩土集团有限公司 Down-hole hammer is with pipe bit
US10519763B2 (en) 2017-09-08 2019-12-31 Eastern Driller Manufacturing Co., Inc. Sonde housing having side accessible sonde compartment
US11828115B1 (en) * 2021-07-12 2023-11-28 Swm International, Llc Systems and apparatus for increasing the outer diameter of a downhole tool string and methods of assembly and use thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193024A (en) * 1962-01-18 1965-07-06 Atlantic Refining Co Percussion drills with exhaust passage in hammer
US3391834A (en) * 1966-10-10 1968-07-09 Precision Valve Corp Valved closure for a pressurized dispenser

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1173857B (en) * 1959-12-29 1964-07-16 Korfmann Gmbh Maschf Elastic chisel cap protection for breakers in mining
US3621191A (en) * 1970-04-21 1971-11-16 Woodrow D Cornwell Electrically heated footwear and handwear
US3991834A (en) * 1975-07-07 1976-11-16 Curington Alfred R Sampling airhammer apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193024A (en) * 1962-01-18 1965-07-06 Atlantic Refining Co Percussion drills with exhaust passage in hammer
US3391834A (en) * 1966-10-10 1968-07-09 Precision Valve Corp Valved closure for a pressurized dispenser

Also Published As

Publication number Publication date
ZA874027B (en) 1988-01-27
US4706764A (en) 1987-11-17
CA1328255C (en) 1994-04-05
JPH0730666B2 (en) 1995-04-10
CN1011323B (en) 1991-01-23
CN87104840A (en) 1988-02-10
SE8702757L (en) 1988-01-29
JPS6344096A (en) 1988-02-25
AU7442287A (en) 1988-02-04
SE8702757D0 (en) 1987-07-03

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